Reflex action in the diagram would be the response. Diagram extracted from online.
Although nitrogen gas makes up 78% of the atmosphere, we can't use it because nitrogen atoms must be broken apart first before. This nitrogen is very much packed and bonded with its atoms and would be useless to use since it can't be used for plants.
What is the chart? Can you show us what it says?
I attached the image related to your concerned question.
In theory, the part of the brain that is responsible for the sleep wake cycle is the hypothalamus; specifically, the ventrolateral preoptic nucleus of the hypothalamus. In the image, the location of the hypothalamus is pointed by the green square.
11. Is B. Ways scientists communicate results
12. Is B. A globe
13. Is A. True
Hope they're all correct!